gear vs sprocket

gear and sprocket both are nouns.

Word	Noun	Adjective	Verb	Adverb
gear	Yes	No	Yes	No
sprocket	Yes	No	No	No

gear (noun)	sprocket (noun)
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion	thin wheel with teeth that engage with a chain
equipment consisting of miscellaneous articles needed for a particular operation or sport etc.	tooth on the rim of gear wheel
wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed	roller that has teeth on the rims to pull film or paper through
a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)

gear (verb)	sprocket (verb)
set the level or character of